package formularios;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.jasper.tagplugins.jstl.core.Out;

import formularios.*;

import javax.servlet.http.HttpServletResponse;


/**
 *
 * @author Parrot
 */
@WebServlet(name = "validador", urlPatterns = {"/validador"})
public class validador extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        
        
        try {
        	
        	String user = request.getParameter("textuser");
        	String pass = request.getParameter("textpass");
        	
        	
        
        
        	Conexion con = new Conexion();
        	try 
        	{
        		Connection cnn = con.getConeccion();
        		Statement st = cnn.createStatement();
        		ResultSet rs = st.executeQuery((new StringBuilder("SELECT * FROM usuarios WHERE user = '")).append(user).append("' AND pass ='").append(pass).append("'").toString());
        		rs.next();
        		
        		
            
        		if(rs.getRow() == 0)
        		{
        			out.print("Errot: Datos erroneos...<br>");
        			out.print("<img href='images/errorLogin.png'/>");
        			out.print("<a href='login.html'>Atras...</a>");
        		}else{
        			response.sendRedirect("index.html");
        		}
        	}catch (Exception e) {
        		out.print("Error :"+e);
        	}
         } finally {            
            out.close();
             
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}